Finding the Fourth Proportional to 28,116.12, 42,175.98 and 10,351.56

Step by Step Solution

1. Step 1: Write the proportion equation
   28,116.12 : 42,175.98 = 10,351.56 : x
2. Step 2: Convert to fraction form
   28,116.12/42,175.98 = 10,351.56/x
3. Step 3: Cross multiply
   28,116.12x = 42,175.98 × 10,351.56
4. Step 4: Simplify right side
   28,116.12x = 436,587,187.53
5. Step 5: Solve for x
   x = 436,587,187.53/28,116.12
6. Step 6: Final answer
   x = 15,528.00